Redback Muffler 11" x 6" Oval, 18" Long, 2 1/4" Offset/Centre
Redback Redback Muffler 11" x 6" Oval, 18" Long, 2 1/4" Offset/Centre, Megaflo — fits selected vehicle applications. Part #H643M. $.
Category: Mufflers and resonators
Part specs
- Barrel Shape
- Oval
- Length
- 457mm (18")
- Tube Size
- 057mm (2 1/4")
- Internals
- Megaflow
- Barrel Size
- 279mm (11") x 152mm (6")
- Configuration
- Offset/Centre
- Packing
- Glass Packed
- Perforation
- Perforated
- Spigots
- With Spigots
- Material Type
- Aluminised Steel
Workshop note
Redback Muffler 11" x 6" Oval, 18" Long, 2 1/4" Offset/Centre, Megaflo — SWD Product Overview Serious about performance? The Redback Muffler 11" x 6" Oval, 18" Long, 2 1/4" Offset/Centre, Megaflo delivers the flow, tone, and build quality your vehicle deserves, backed by SWD's reputation for excellence. Manufactured by Redback and available through SWD, the Redback Muffler 11" x 6" Oval, 18" Long, 2 1/4" Offset/Centre, Megaflo represents the gold standard in aftermarket exhaust technology. Every component — from the CNC•machined flanges to the internally baffled mufflers — is engineered to reduce backpressure, improve exhaust gas velocity, and deliver a measurable increase in both power and torque. Key Features & Benefits • Dyno•proven power and torque gains across the entire RPM range • Mandrel•bent premium•grade materials tubing for optimal exhaust flow and zero restriction points • CNC•machined flanges and precision TIG welding for leak•free, factory•like fitment Vehicle Fitment & Installation Designed as a direct replacement for the listed vehicle application, the Redback Muffler 11" x 6" Oval, 18" Long, 2 1/4" Offset/Centre, Megaflo uses all OEM mounting locations and includes every bracket, gasket, and clamp needed for a straightforward installation. Professional installation is recommended but experienced home mechanics can complete the job in 2•4 hours on a hoist. Performance Benefits The performance gains from the Redback Muffler 11" x 6" Oval, 18" Long, 2 1/4" Offset/Centre, Megaflo aren't just numbers on a dyno sheet — you'll feel the difference every time you accelerate. Reduced backpressure means your engine breathes easier, spools turbos faster, and delivers throttle response that puts a smile on your face. Combined with the weight savings over factory steel exhausts, this upgrade transforms how your vehicle drives. Technical Specifications • Barrel Shape: Oval • Length: 457mm (18") • Tube Size: 057mm (2 1/4") • Internals: Megaflow • Barrel Size: 279mm (11") x 152mm (6") • Configuration: Offset/Centre • Packing: Glass Packed • Perforation: Perforated Supplier Information The Redback Muffler 11" x 6" Oval, 18" Long, 2 1/4" Offset/Centre, Megaflo is sourced from SWD (swd.com.au), one of Australia's leading automotive parts distributors. Every unit is backed by SWD's warranty and supported by their nationwide dealer network. SKU: H643M | RRP: $159.99 AUD | Available from SWD. Where to Buy Get your Redback Muffler 11" x 6" Oval, 18" Long, 2 1/4" Offset/Centre, Megaflo today from SWD. Priced at $159.99 RRP with fast Australian shipping and full warranty coverage. Whether you're building a weekend warrior or upgrading your daily driver, this is the exhaust system that delivers.
Fitment support across the Illawarra
Oak Flats Muffler Men can check this part against supplier specs, part number, image, RRP and vehicle details for customers around Oak Flats, Shellharbour, Wollongong, Dapto, Albion Park, Kiama and the northern suburbs.
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Send the vehicle make, model, year, engine, current issue, desired sound or performance goal, and clear photos of the existing exhaust where available.